Anti-aircraft gun.



T. R. KRZYZANOWSKI.

ANTI-AIRCRAFT GUN.

arrucmou FILED JULY 25. m1. RENEWED JAN. 24. m9.

1,297,699. Patented Mar. 18,1919.

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Tnnononn a. KRZYZANOWSKI, or PHILADELPHIA, PENNSYLVANIA, ASSIGNOR or TEN oNn-HnNnnnnTns To FRANK GLIWSKI, or cnrcornn, MASSACHUSETTS, AND oNN-nALrv To s. s. rmnnn, or WALL, PENNSYLVANIA.

ANTI-AIRCRAFT GUN.

Application filed. July 25, 1917, Serial No. 182,674. Renewed January 24, 1919. Serial No. 272,966.

To all whom it may concern:

Be it known-that I, THEODORE R. KRzrzANowsKI, a subject of the Emperor of Austria, residi at Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented certain new and useful Improvements in Anti-Aircraft Guns, of which the following is a specification.

The primary object of th invention is the provision of a fire-arm of the machine gun type especially adapted for use in brmging down aeroplanes and other air craft, the

gun being mounted for universal movement and readily shiftable at the will of the operator simultaneously with the firing of the same, if desired.

A. further object of the invention is the provision of a gun of simple construction adapted-for the rapid firing of cartridges the firin means being simultaneously operable witl a feeding means for the cartridges, the latter being readily renewable when the supply thereof is exhausted.

With these general objects in view and others that will appear as the nature of the invention is better understood, the invention resides in the novel combination and arrangement of parts hereinafter more fully described, illustrated in the accompanying drawing, and then claimed.

In the drawing formin a part of this application and in which like reference charactors designate corresponding parts throughout the several views,

Figure l is a side elevation of the device set up for use.

Fig. 2 is an enlarged transverse sectional view of the gun.

Fig. 3 is an enlarged longitudinal section'al view through the rear portion of the Fig. 4 is a longitudinal sectional view taken upon a'plane perpendicularto the line of section of Fig. 3, and

Fig. 5 is an enlarged detail sectional view of a portion of the cartridge holder and one of the reels.

My invention being designed to provide a rapid-firing gun for shooting at elevated supported upon a suitable base 13, a turntabl or platform 14 being mounted upon bearing balls 15 positioned upon said tabletop. ecured centrally to said table-top is a stub shaft 16 extendin freel through the table-top, whereby sai capable of rotation. Upstanding from the platform 14: is a fixed arm or upright 17 with its lower end adjacent the perimeter of said platform, said arm overhanging the lat ter, with its upper end in alinement with the shaft 16, said arm-upper end being provided with a substantially triangular head 18.

A gun or cannon 19 is trunnioned in the head of the arm or upright 17 by means of a shaft 20, said head being bifurcated, with the gun shiftably arranged between the branches of the bifurcation of said head so as to assume either a horizontal, vertical or inclined position or angle. A toothed quadrant 21 is carried by the shaft 20 in mesh with a pinion 22 whose shaft is journaled in the head 18 and which shaft is provided with a crank 23 by the actuation of which the desired angular adjustment ofthe gun may be obtained. I

The gun 19 has a central bore 24, and at its breech end is closed by a cap or breech block 25 retained in closed position in any suitable manner as by a clamp screw 26 as shown. The cap has a block or extension 27 projecting centrally from its rear face. which, when the gun is moved to a vertical position, will engage the upper end of the stub shaft 16 and relieve the supporting arm 17 of the strain incident to recoil of the gun when fired.

It will be apparent that the gun 19 may be shifted at different inclination angles by suitably manipulating th crank 23 and may also be brought into its vertical position in a similar manner and at which t'mes the seating of the gun upon the post 17 will form a firm base for the gun against shocks and recoils occasioned by the firing of the gun. All shocks communicated to the arm or upright 17 will be taken up by the table 10.

An arcuate passage 28 is provided through the gun 19 adjacent its rear end, which passage intersects the bore 24, whereby a car-- tridge such as 29 inserted within the passage 28 may be readily positioned in alinement with the bore 24. A cartridge carrier 30 in the form of a belt is adapted to be Patented Mar. 18, 1919.

plat orm may be passed through the passage 28 with the car tridges 29 arranged within the pockets 31 of the belt. A bracket 321 s secured beneath the gun 19 adjacent the passage 28 having reels 33 removably journaled in the ends thereof and operable by a crank 34 carried by one of the said reels, the belt being filled with cartridges 29 wound upon one of the reels 33, and the end of the belt passed through the passage 28 and secured as at 35 to the opposite reel 33. An idleror brake cylinder 36 may be arranged between the reels 33 if desired and it will be evident that upon turning the crank 34 the cartridges 29 will be successively brought into-firing position centrally of-the passage 28 and in alinement with the bore 24.

A chamber 37 is arranged beneath the portion 38 of the bore 24 which is rearwardly of the passage 28, the same providing a ledge 39 from which the rear beads or bases of the cartridges 29 project during the passage of the cartridges through the pasl sage 28 as best illustrated in Fig. 4' of the drawing. The turning of the crank 34 causes the belt 30 to travel at a uniform speed through the passage 28 with the bases of the cartridges 29 contacting against the rear face 40 of the passage 28 as well as "against the ledge 39 heretofore set forth whereby each' cartridge may be successively placed in its firing position for projecting the bullets 41 through the bore 24 upon the explosion of the cartridges.

The firing mechanism, arranged within. 7 the chamber 37, consists of a collar-like member 42 secured to a shaft 43 suitably 'journaled in the gun-barrel and extending,

through the said chamber 37 and has a firing pin 44 adapted to penetrate the base of each cartridge 29 as the same comes in its firing position within the passage 28. A spring 45 is arranged within the chamber 37 engaging the heel'46 of the collar like member 42, said spring normally positioning the pin 44 to lightly engage the adjacent cartridge 29.

provided for the chamber 37.

It will be understood that with the belt 30 in its operative arrangement for succes-.

sively shifting the cartridges 29 into their firing position by means of the crank34, that the crank 48 may be turned for tripping the firing pin 44 for each successive cartridge whereby each cartridge may be fired as soon as it reaches the roper osition. In this manner the rapid. ring 0 the cartridgesis easil accomplished, and when the supply has been exhausted, a new belt filled with cartridges may be inserted to replace the exhausted belt. A rapid firing gun is provided which may be employed for shooting vertically or at different inclinations, as well as horizontally, the structure possessing great strength and at the same time being very simple in construction and easy to opcrate.

What I claim as new is 1. A gun having an axial bore and an arcuate passage having a rear-end base, and a ledge also at said. end for engagement with the cartridge-base, said passage intersecting the said bore with a chamber arranged rearwardly of the passage, a belt having pockets and shiftably arranged through the said passage, cartridges within the said pockets adapted for successive positioning in firing position in alinement with the said bore and with the bases of the cartridgesadjacent the said chamber,-means for shifting the said belt, and firing means for the cartridges arranged .within the said chamber.' a

2. A gun having an axial bore and an arcuate passage having a rear-endbase, and a ledge also at'said end for engagement'with the cartridge-base, said passage intersecting the said bore with a chamber arranged rearwardly of the passage, a belt having pockets shiftably arranged through the said passage,

cart-ridges within the said pockets adapted for successive positioning in firing position in alinement wlth the said bore and with the bases of the cartridges adjacent the said chamber, means for feeding the belt through the arcuate passage to bring the cartridges successively in line with said bore, .a firing pin pivotally' mounted within the chamber for firing the cartridges, and means for operating said firing pin.

3. A gun having an arcuate passage extending transversely through its barrel and communicating with its bore, said arcua-te passage having a rear end bas e,'and a ledge also at said end, said gun-barrel having a chamber rearwardly of said arcuate-passage, a belt provided with pockets and adapted for feeding through said passage, said pockets being equipped with cartridges for successive positioning in firing position in alinement with the bore of the gun, the cartridges having their bases positioned against the said rear-end base of the arcuate passage and adjacent to the ledge of said passage,

means for feeding said belt through the arcuate passage, and firing means for the cartridges, arranged within said chamber.

THEoDoRE'iiKRzYzANoWsKI. 

